For now the SR Research pylink module is packaged with the Standalone flavours of PsychoPy and can be imported with:
import pylink
You do need to install the Display Software (which they also call Eyelink Developers Kit) for your particular platform. This can be found by following the threads from:
https://www.sr-support.com/forums/forumdisplay.php?f=17
for pylink documentation see: